1) fault identification
故障区分
1.
A new approach to fault identification based on robust adaptive observer
一种基于鲁棒自适应观测器的故障区分方法
3) fault zone sectionalization
故障区间划分
4) short-line fault
近区故障
1.
With regards to FCL terminal fault and short-line fault in power transmission lines installed with inductive FCL, mathematical formula are presented, based on theoretical analysis and deduction, to properly describe the relationship .
针对安装电感型故障限流器的系统发生出线故障和近区故障的现象,通过理论分析与推导,给出了描述断路器恢复电压上升率与限流比、杂散电容以及近区故障距离之间关系的数学表达式。
2.
With regards to FCL terminal fault and short-line fault in power transmission lines installed with serial-resonant FCL,the influence of current limiting inductance and its parallel stray capacitance on interrupting fault current,the first peak valve of transient recovery voltage and rate of rise of transient recovery voltage of circuit breakers are analyzed.
基于串联谐振型故障限流器的等效分析模型,分别针对短路出线故障和近区故障,详细研究了限流电感及其并联杂散电容对短路电流、断路器瞬态恢复电压第一个峰值以及瞬态恢复电压上升率的影响,并综合以上指标得到了断路器苛刻度的变化规律。
5) dead-zone fault
死区故障
1.
Research of busbar protection s logic on dead-zone fault of coupler;
母线保护中母联死区故障保护逻辑的研究
2.
According to the principle of BP-2B bus differential protection,filed bus wiring and power flow direction of 500 kV Gangcheng Substation under Zhanjiang Power Supply Bureau,the paper compares the effects of actuating bus separation pressboard on bus differential protection during bus fault and dead-zone fault in different cases.
根据湛江供电局500kV港城变电站BP-2B型母线差动保护装置的原理、现场实际母线接线和线路运行潮流方向,对比不同情况下母线分列压板的投入对母线故障和死区故障时母线差动保护动作的影响,说明实际工作中应根据现场情况来处理母线分列运行时的压板投退问题。
3.
This paper introduces the configuration of bus protection in dual-bus dual-subsection connection,and puts emphasis on analysis of action of bus differential protection in bus coupling breakers or sectional switches malfunction and dead-zone fault,and also expounds the differences between bus coupling breaker malfunction and sectional switch malfunction.
介绍了双母线双分段接线方式下母差保护的配置,着重分析母线故障情况下母联开关或分段开关失灵以及发生死区故障母差保护的动作过程,阐明了母联开关失灵和死区故障与分段开关失灵和死区故障母差保护动作行为上的区别,列表说明发生这些故障时母差保护面板上信号灯动作情况。
6) fault section
故障区段
1.
As the distribution lines are found faulty,the fault section must be located between two breakers.
馈电线路发生故障时,故障区段必然位于两个相邻负荷开关之间的线路上,通过馈线终端单元采集故障信息上报SCADA系统,得到负荷开关上馈线终端的有关故障信息序列,利用故障信息进行故障区段定位。
2.
In this paper, one kind of new fault locating method based on the fault component combining with fault section locating method are presented by summarizing all kinds of fault locating methods in exist, and using TWACS to detect fault of distribution lines before.
本文通过总结现有的各种故障定位方法,利用双向工频通信技术检测配电网故障,提出了故障区段定位法和基于故障分量的阻抗法相结合的双端故障定位方法,来确定故障点。
3.
The second one is based on the wide-area measurement technology,and the current protection at the exit of the first line is combined with the direction information detected by the directional elements at the terminations of the lines to exactly distinguish the fault section,ensure the upper protection\'s selectivity and rapidity.
提出了2种含DG配电网的馈线保护新方案:一种方案是在现有方向电流保护的基础上,将DG上游每条馈线保护的Ⅰ段与其下一级馈线保护的Ⅰ段构成一个通信单元,依据新的整定原则及两级保护动作结果的综合判断将故障快速地隔离在最小范围内;另一种方案是利用广域网将每条线路末端方向元件检测到的功率方向信息和DG上游第1条出线上装设的电流保护的区段判别结果结合起来,精确地区分故障区段,保证上游保护的选择性和快速性。
补充资料：故障
（机械、仪器等）发生的不能顺利运转的情况；毛病②：发生～丨排除～。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条